w154
·I’ll post a WTB for this on the off chance that somebody has one lying around. This is to provide donor parts for an Ebel 6B/159. I’m not an expert on these, but it would be preferable to have one with a Breguet (over oil) hairspring as that’s correct for the 6B/159s. If not a flat hairspring one would also work. Here’s what it should look like.